139288540

素因数分解:

$2^2\times 5^1\times {\mathrm{6964427}}^1$

素因数の和:6964436

約数の個数: 12

約数和(自身を含む): 292505976

約数和(自身を除く): 153217436

約数列:

[1, 2, 4, 5, 10, 20, 6964427, 13928854, 27857708, 34822135, 69644270, 139288540]

約数ペア:

[(1, 139288540), (2, 69644270), (4, 34822135), (5, 27857708), (10, 13928854), (20, 6964427)]